More and more motorists are trying to take care of their cars on their own. This outcomes in substantial cost savings because contemporary cars necessitate more and more routine service and are done up of more and more technical components that lead to new breakdowns or inconveniences. One of the problems that affects more and more Volvo S90 owners is a clogged air flow meter, which will lead to a loss of power and black exhaust gases. In this article we are going to examine how to clean the mass air flow sensor of your Volvo S90? . First, we will show you how your mass airflow sensor works and its value, second, why it might be important to clean this sensor , and finally, how to clean the mass air flow sensor of a Volvo S90 .

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Utility and operation of the mass air flow meter of a Volvo S90

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So we start our article with the procedure and intent of your Volvo S90 flowmeter.

The goal of the mass air flow sensor on Volvo S90

The mass air flow sensor is a part that has been developed actually quite not too long ago and specifically outfitted on diesel models. In fact, with injection engines, the fuel and air intake has become very precise and it is so essential for the ECU to know the exact volume of air loaded into the engine to adapt the actions of complementary intake parts such as the injection or the EGR valve, if you have problems with the EGR valve on your Volvo S90, do not hesitate to seek advice from our article on this subject.

Mass air flow sensor operation on Volvo S90

Now, we are going to look at how it works, before trying to clean the mass air flow sensor of your Volvo S90 , you must already find out how it functions to achieve this routine service work correctly.

The mass air flow sensor is therefore specifically there to obtain data on the air intake of your car. To achieve this, it must be fitted just after the air intake of your Volvo S90, i. e. just after the air filter. It is a pipe outfitted with a sensor that will analyze the air in the intake and transmit the data to the ECU of your car.

Why clean the mass air flow sensor of a Volvo S90?

The mass air flow sensor of your Volvo S90 can have problems and this is what we will try to see and understand what problems you might be struggling with!

Mass air flow sensor problems Volvo S90

Here are the different problems that the air flow sensor of your Volvo S90 can cause:

  • higher fuel consumption: Because a dirty flow meter will actually bring about higher fuel consumption because of poor air flow…
  • Power loss: Related to the same problem, this lack of air can cause a loss of power to your engine.
  • Difficulties starting the vehicle: Finally, one of the last classic problems connected with a dirty flowmeter will be that your Volvo S90 will have more issues to start the vehicle.

How do I clean the mass air flow sensor from a Volvo S90?

After examining the operation and problems that the flowmeter can cause, we will look at how to resolve these problems by showing to you how to clean the mass air flow sensor of your Volvo S90 . You should know that this operation is actually quite basic to conduct and you will not need advanced mechanical skills to do it yourself, a good method to avoid a trip to the mechanic and a steep bill. Discover down below the different steps to follow to conduct this routine service act:

  • After having found the mass air flow sensor of your Volvo S90 , you will have to dismantle it. To achieve this, work gently, but you will just have to disassemble it on both sides of the air duct and disconnect the electrical plug on top of it.
  • Once taken apart, you will be able to proceed to the step cleaning the mass air flow sensor of your Volvo S90 . This sensor will, as time passes, get dirty and its two “filaments” that will give information to your computer on the quality and temperature of the air will no longer be able to collect data correctly, it is in this sense that it will disrupt the operation of the engine of your Volvo S90. The goal of this cleaning will be to remove all its impure substances to allow it to work efficiently again.
  • Let soak the lower part of your mass air flow sensor (not the plug part) in acetone or another solvent for a few minutes , which will remove most of the grime
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  • Now we’ll move on to the very delicate cleaning of the flow meter filaments. You have to be very cautious, otherwise your mass air flow sensor will be permanently damaged. With the help of a fine brush and solvent, gently clean the two filaments of your mass air flow sensor . If you are too afraid of damaging it, you can as well clean them with a brake fluid in the form of an aerosol by spraying the jet on these filaments.

Now you know how to clean the mass air flow sensor of your Volvo S90 , you should feel a noticeable difference in the behavior of your engine.

If you want more guides on the Volvo S90, go to our Volvo S90 category.